17) 11.1
18) 21.4
19) 30.5
20) 16.5
21) 26.5
Answer:

Step-by-step explanation:
(5x+6)(3x-2)
"foil" it out
F: 5x * 3x = 15x^2
O: 5x * -2 = -10x
I: 6*3x = 18x
L: 6 * -2 = -12
Answer:
It would be the third one
Step-by-step explanation:
The one with the shortest top arrow because if you have -8 and you minus that by -2 that cancels out and instead the minus turns into a plus and the 2 becomes positive therefore it becomes -6
Answer: f (
x) = −
50
Step-by-step explanation: